Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← GeographyWhich outcome results when increased water saturation occurs within subducting oceanic crust?
A)Flux melting causes arc volcanism✓
B)Mantle plumes trigger hotspot volcanism
C)Ridge push initiates seafloor spreading
D)Slab pull accelerates plate motion
💡 Explanation
Arc volcanism occurs because `flux melting` lowers the mantle's melting point above the subducting slab; therefore, magma rises and generates volcanoes rather than other processes driven by mantle dynamics or ridge activity.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Geography →- Which outcome follows increased rainfall intensity on soils?
- Which outcome results when equatorial Pacific upwelling weakens?
- Which risk increases drastically due to prolonged tephra fallout near active stratovolcanoes?
- Which weather phenomenon results from the Coriolis effect acting on synoptic air masses influenced by a high-pressure system?
- Which effect results as global air masses approach pressure gradients?
- Which consequence results when longshore drift encounters a deepwater submarine canyon?
